Configuration procedure

Configure Router A:
# Specify an IP address for GigabitEthernet 1/0/1.
```
<RouterA> system-view
[RouterA] interface gigabitethernet 1/0/1
[RouterA-GigabitEthernet1/0/1] ip address 10.154.5.1 24
```
# Enable IRDP on GigabitEthernet 1/0/1.
```
[RouterA-GigabitEthernet1/0/1] ip irdp
```
# Specify preference 1000 for advertised IP addresses on GigabitEthernet 1/0/1.
```
[RouterA-GigabitEthernet1/0/1] ip irdp preference 1000
```
# Specify the multicast address 224.0.0.1 as the destination IP address for RAs sent by GigabitEthernet 1/0/1.
```
[RouterA-GigabitEthernet1/0/1] ip irdp multicast
```
# Specify the IP address 192.168.1.0 and preference 400 for GigabitEthernet 1/0/1 to proxy-advertise.
```
[RouterA-GigabitEthernet1/0/1] ip irdp address 192.168.1.0 400
```
Configure Router B:
# Specify an IP address for GigabitEthernet 1/0/1.
```
<RouterB> system-view
[RouterB] interface gigabitethernet 1/0/1
[RouterB-GigabitEthernet1/0/1] ip address 10.154.5.2 24
```
# Enable IRDP on GigabitEthernet 1/0/1.
```
[RouterB-GigabitEthernet1/0/1] ip irdp
```
# Specify preference 500 for advertised IP addresses on GigabitEthernet 1/0/1.
```
[RouterB-GigabitEthernet1/0/1] ip irdp preference 500
```
# Specify the multicast address 224.0.0.1 as the destination IP address for RAs sent by GigabitEthernet 1/0/1.
```
[RouterB-GigabitEthernet1/0/1] ip irdp multicast
```
# Specify the IP address 192.168.2.0 and preference 400 for GigabitEthernet 1/0/1 to proxy-advertise.
```
[RouterB-GigabitEthernet1/0/1] ip irdp address 192.168.2.0 400
```

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